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164 results for “mobile wireless”
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Research ArticleOpen accessIn the keywordsCLUSTER BASED CACHE CONSISTENCY USING AGENT TECHNIQUE IN MOBILE ENVIRONMENTShanmugarathinam Ganesarathinam, Vivekanandan KanniappanCaching is an essential mechanism in mobile environment. Mobile node makes access dynamic changing data object to their server and to get the interested data to keep their own as local copies in the cache. If the server database is updated, the data cached in mobile client is invalidated and it becomes inconsistent between client and server. In this study … …Journal of Computer Science, Vol. 10, Issue 4 · 19 Dec 2013 · 6,487 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Survey of Intrusion Detection Schemes in Wireless Sensor NetworksMurad A. Rassam, M. A. Maarof, Anazida ZainalWireless Sensor Networks (WSNs) are currently used in many application areas including military applications, health related applications, control and tracking applications and environment and habitat monitoring applications. The harsh and unattended deployment of these networks along with their resource restrictions makes their security issue very important. Prevention-based security approaches like cryptography, authentication and key management have been used to protect … …American Journal of Applied Sciences, Vol. 9, Issue 10 · 17 Aug 2012 · 8,733 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Analysis and Overview of Wireless Routing ProtocolsN. Dhanalakshmi, P. AlliProblem statement: In the past, the main focus of the research in the wireless network is to provide optimal routes between source and destination nodes. The wireless routing is required additional computational effort than wired routing in order to fulfill the major wireless characteristics such as battery power constraints, frequent mobility and less processing. Approach: In addition to wired routing … …Journal of Computer Science, Vol. 8, Issue 3 · 17 Jan 2012 · 7,628 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSecure Enhanced Authenticated Routing Protocol for Mobile Ad Hoc NetworksM. Rajesh Babu, S. SelvanProblem statement: This study propose an improvement of Ad Hoc on Demand Distance Vector (AODV) Routing protocol in order to include some of the aspects of ad hoc networks such as load balancing, congestion avoidance and avoidance of link breakage. Approach: The most important problem nowadays is link breakage which mainly occurs due to excessive load and congestion in the … …Journal of Computer Science, Vol. 7, Issue 12 · 17 Oct 2011 · 6,620 accessesView PDFCite
Research ArticleOpen accessIn the keywordsImpact of Sybil and Wormhole Attacks in Location Based Geographic Multicast Routing Protocol for Wireless Sensor NetworksShyamala Ramachandran, Valli ShanmuganProblem statement: Wireless sensor networks have been used in many applications, such as home automation, military surveillances and entity tracking systems. The sensor nodes have low computational capabilities and are highly resource constrained. Routing protocols of wireless sensor networks are prone to various routing attacks, such as black hole, rushing, wormhole, Sybil and denial of service attacks. Approach: The objective … …Journal of Computer Science, Vol. 7, Issue 7 · 28 Jun 2011 · 6,982 accessesView PDFCite
Research ArticleOpen accessIn the keywordsStudent's Mobile Information Prototype for the Higher Education EnvironmentNaji Shukri Alzaza, Abdul Razak YaakubProblem statement: M-learning is considered as the next form of e-learning using mobile technologies to facilitate education for teachers and learners. Students need to keep in touch with their education services anytime regardless the place. Engaging the m-learning services in the Malaysian higher education will improve the availability of education. This study discusses the development and user’s evaluation of Student’s … …American Journal of Economics and Business Administration, Vol. 3, Issue 1 · 26 Jan 2011 · 8,766 accessesView PDFCite
Research ArticleOpen accessIn the keywordsComparison of Bit Error Rate Performance of Multi Tone Channel Utilising De-OQPSK and De-Off Set 16 QAM with Guard IntervalIbrahim A.Z. QatawnehDigital communications systems use Multi tone Channel (MC) transmission techniques with differentially encoded and differentially coherent demodulation. Today there are two principle MC application, one is for the high speed digital subscriber loop and the other is for the broadcasting of digital audio and video signals. In this study the comparison of multi carriers with OQPSK and Offset 16 QAM … …Journal of Computer Science, Vol. 1, Issue 3 · 30 Sep 2005 · 6,847 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAnalysis of Enhanced Associativity Based Routing ProtocolSaid A. Shaar, Fawaz A.M. Masoud, Ayman Murad et al.This study introduces an analysis to the performance of the Enhanced Associativity Based Routing protocol (EABR ) based on two factors; Operation complexity (OC) and Communication Complexity (CC). OC can be defined as the number of steps required in performing a protocol operation, while CC can be defined as the number of messages exchanged in performing a protocol operation[1]. The … …Journal of Computer Science, Vol. 2, Issue 12 · 31 Dec 2006 · 6,647 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRemote Personal Tracking System (RPTS)Abdfatah A. Yahya, Mahmoud Z. IskandaraniA novel system for remote tracking of personnel was proposed. The system was based on assuring that the moving tracked code belongs to the actual person assigned such a code by smelling and temperature measuring the person who holds such a device. The system would operate using a specific RF signal and allows for an accurate, economic and secure environment … …American Journal of Applied Sciences, Vol. 3, Issue 12 · 31 Dec 2006 · 7,691 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessing the Usability of IoT-Based Smart Farming for Sustainable Organic AgricultureArisaphat Suttidee, Pankom Sriboonlue, Sompoch Tongnamtiang, Varitha LakkhamThis study evaluates the usability of an IoT-based smart farming system developed to support organic agriculture in Thailand. Many small-scale farmers still spend considerable time manually monitoring soil conditions and managing irrigation, often without access to practical technology. This slows farm operations and makes efficient water use more difficult. To address these challenges, the system was designed with wireless soil-moisture … …Journal of Computer Science, Vol. 21, Issue 10 · 7 Dec 2025 · 3,390 accessesView PDFCite